Operational
Colocation
Air cooled
Tier III

NTT DATA Kasai Techno

NTT DATA · Kasai

IT live
18 MW
Free to lease
1.3 MW
$ / kW·mo
$188
White space
125k ft²

Inventory

93% occupied

Power

18 MWlive

1.3 MW to lease · 16.7 MW in use

White space

125k ft²total

8,750 ft² free · 116k ft² occupied

12k m² · 813 m² free

Free power is unsold critical IT at this building, not utility headroom. Space is computer-room white space.

Power

IT live18 MW
Free to lease1.3 MW
Utility feed22.5 MW
Campus / planned18 MW

About 4.5 MW of the utility feed is cooling, conversion, and house load.

Power cost

$188/kW·mo

18.4¢ industrial · 25.8¢ after PUE 1.40

Per MW·year
$2.3M
This site · 18 MW
$41M/yr
8 kW rack
$1,504/mo
3.2¢ cheapdear 22.4¢

5.7× the cheapest market (Iceland Landsvirkjun). Same IT load there is $34M/yr less.

TEPCO extra-high voltage · utility tariff × PUE, not colo list price.

Redundancy
N+1
Opened
2004
Renewable match
25%
Rack density
8 kW
Voltage
PUE
1.401.00 ideal · 1.60 typical
Power source
TEPCO. Dual utility feeds. Seismically isolated (免震) building.

Cooling

Plant

Air / CRAH

Liquid

Not deployed

Rack density

8 kW

H100-eq

WUE

0.72 L/kWh

fleet avg · 2024 · 114k m³/yr at 18 MW

0 dry2.50 evaporative

Operator fleet average applied to this hall — not a site meter. NTT DATA GDC 2025 Sustainability Report (FY2024).

Chilled-water CRAH, N+1. Liquid-ready suites offered on newer halls.

Network carriers

9

On-net and metro carriers typically present at this location, including internet exchanges. Not a full circuit inventory.

Clouds

5

Native regions and typical Direct Connect / ExpressRoute / Interconnect on-ramps at this campus. Availability varies by hall.

Location

Tokyo, Tokyo, Japan

Kasai, Edogawa-ku, Tokyo

35.664°, 139.873° · Asia

Tenants / users

Enterprise, large systems

Notes

23-ward campus sized for large system installs. Complements Otemachi interconnection.

Operator site

Compiled from public filings, operator pages, and reporting. Not an official operator specification.